@article {GOODSON945, author = {NICOLA J. GOODSON and TRACEY M. FARRAGHER and DEBORAH P.M. SYMMONS}, title = {Rheumatoid Factor, Smoking, and Disease Severity: Associations with Mortality in Rheumatoid Arthritis}, volume = {35}, number = {6}, pages = {945--949}, year = {2008}, publisher = {The Journal of Rheumatology}, issn = {0315-162X}, URL = {https://www.jrheum.org/content/35/6/945}, eprint = {https://www.jrheum.org/content/35/6/945.full.pdf}, journal = {The Journal of Rheumatology} }